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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-09 18:10:34 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-09 18:10:34 -0700 |
commit | 82abb273d838318424644d8f02825db0fbbd400a (patch) | |
tree | e1ea8a92db4ba68f347249986ffe3a25ffbf8219 /arch/mips/kernel/cpu-probe.c | |
parent | 9b651cc2277b5e4883012ebab0fea2bcda4cbafa (diff) | |
parent | f8647b506d7116a1a3accd8d618184096e85f50b (diff) | |
download | op-kernel-dev-82abb273d838318424644d8f02825db0fbbd400a.zip op-kernel-dev-82abb273d838318424644d8f02825db0fbbd400a.tar.gz |
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
- three fixes for 3.15 that didn't make it in time
- limited Octeon 3 support.
- paravirtualization support
- improvment to platform support for Netlogix SOCs.
- add support for powering down the Malta eval board in software
- add many instructions to the in-kernel microassembler.
- add support for the BPF JIT.
- minor cleanups of the BCM47xx code.
- large cleanup of math emu code resulting in significant code size
reduction, better readability of the code and more accurate
emulation.
- improvments to the MIPS CPS code.
- support C3 power status for the R4k count/compare clock device.
- improvments to the GIO support for older SGI workstations.
- increase number of supported CPUs to 256; this can be reached on
certain embedded multithreaded ccNUMA configurations.
- various small cleanups, updates and fixes
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (173 commits)
MIPS: IP22/IP28: Improve GIO support
MIPS: Octeon: Add twsi interrupt initialization for OCTEON 3XXX, 5XXX, 63XX
DEC: Document the R4k MB ASIC mini interrupt controller
DEC: Add self as the maintainer
MIPS: Add microMIPS MSA support.
MIPS: Replace calls to obsolete strict_strto call with kstrto* equivalents.
MIPS: Replace obsolete strict_strto call with kstrto
MIPS: BFP: Simplify code slightly.
MIPS: Call find_vma with the mmap_sem held
MIPS: Fix 'write_msa_##' inline macro.
MIPS: Fix MSA toolchain support detection.
mips: Update the email address of Geert Uytterhoeven
MIPS: Add minimal defconfig for mips_paravirt
MIPS: Enable build for new system 'paravirt'
MIPS: paravirt: Add pci controller for virtio
MIPS: Add code for new system 'paravirt'
MIPS: Add functions for hypervisor call
MIPS: OCTEON: Add OCTEON3 to __get_cpu_type
MIPS: Add function get_ebase_cpunum
MIPS: Add minimal support for OCTEON3 to c-r4k.c
...
Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
-rw-r--r-- | arch/mips/kernel/cpu-probe.c | 21 |
1 files changed, 4 insertions, 17 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 6e8fb85..d74f957 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -62,7 +62,7 @@ static inline void check_errata(void) case CPU_34K: /* * Erratum "RPS May Cause Incorrect Instruction Execution" - * This code only handles VPE0, any SMP/SMTC/RTOS code + * This code only handles VPE0, any SMP/RTOS code * making use of VPE1 will be responsable for that VPE. */ if ((c->processor_id & PRID_REV_MASK) <= PRID_REV_34K_V1_0_2) @@ -423,7 +423,7 @@ static void decode_configs(struct cpuinfo_mips *c) #ifndef CONFIG_MIPS_CPS if (cpu_has_mips_r2) { - c->core = read_c0_ebase() & 0x3ff; + c->core = get_ebase_cpunum(); if (cpu_has_mipsmt) c->core >>= fls(core_nvpes()) - 1; } @@ -684,21 +684,6 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) */ c->tlbsize = (read_c0_info() & (1 << 29)) ? 64 : 48; break; - case PRID_IMP_RM9000: - c->cputype = CPU_RM9000; - __cpu_name[cpu] = "RM9000"; - set_isa(c, MIPS_CPU_ISA_IV); - c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR | - MIPS_CPU_LLSC; - /* - * Bit 29 in the info register of the RM9000 - * indicates if the TLB has 48 or 64 entries. - * - * 29 1 => 64 entry JTLB - * 0 => 48 entry JTLB - */ - c->tlbsize = (read_c0_info() & (1 << 29)) ? 64 : 48; - break; case PRID_IMP_R8000: c->cputype = CPU_R8000; __cpu_name[cpu] = "RM8000"; @@ -1041,6 +1026,7 @@ static inline void cpu_probe_ingenic(struct cpuinfo_mips *c, unsigned int cpu) decode_configs(c); /* JZRISC does not implement the CP0 counter. */ c->options &= ~MIPS_CPU_COUNTER; + BUG_ON(!__builtin_constant_p(cpu_has_counter) || cpu_has_counter); switch (c->processor_id & PRID_IMP_MASK) { case PRID_IMP_JZRISC: c->cputype = CPU_JZRISC; @@ -1074,6 +1060,7 @@ static inline void cpu_probe_netlogic(struct cpuinfo_mips *c, int cpu) switch (c->processor_id & PRID_IMP_MASK) { case PRID_IMP_NETLOGIC_XLP2XX: case PRID_IMP_NETLOGIC_XLP9XX: + case PRID_IMP_NETLOGIC_XLP5XX: c->cputype = CPU_XLP; __cpu_name[cpu] = "Broadcom XLPII"; break; |